Three-dimensional Navier-Stokes analysis of turbine passage heat transferThe three-dimensional Reynolds-averaged Navier-Stokes equations are numerically solved to obtain the pressure distribution and heat transfer rates on the endwalls and the blades of two linear turbine cascades. The TRAF3D code which has recently been developed in a joint project between researchers from the University of Florence and NASA Lewis Research Center is used. The effect of turbulence is taken into account by using the eddy viscosity hypothesis and the two-layer mixing length model of Baldwin and Lomax. Predictions of surface heat transfer are made for Langston's cascade and compared with the data obtained for that cascade by Graziani. The comparison was found to be favorable. The code is also applied to a linear transonic rotor cascade to predict the pressure distributions and heat transfer rates.
Document ID
19910059544
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Ameri, Ali A. (University of Kansas Center for Research Inc., Lawrence, United States)
Arnone, Andrea (Firenze, Universita Florence, Italy)